Refractory Material for Tunnel Kiln Introduction
Tunnel kiln consists of four parts kiln body combustion equipment ventilation equipment and kiln conveying equipment.
1.Tunnel kiln body is composed of two parts: tunnel kiln wall and tunnel kiln roof.
Tunnel kiln wall together with tunnel kiln roof divides tunnel kiln road from the outside, and the combustion products exchange with the blank in the kiln. Tunnel kiln wall must withstand the high temperature.
Tunnel kiln wall must support the kiln roof and bear a certain weight, refractory material for tunnel kiln must have a certain amount of strength.
The inner wall temperature of the tunnel kiln wall is approximately equal to the temperature of the refractory product, the outer wall is in contact with the atmosphere, so the heat of the inner wall is lost through the kiln wall to the outer wall. Tunnel kiln wall can be insulated to reduce the loss of heat.
1) Use refractory clay bricks for tunnel kiln at temperatures above 1300℃
2) Tunnel kiln for refractory material need use high alumina bricks at 1300 ℃ ~ 1400 ℃
3) Refractory tunnel kiln need use silica brick at 1400 ℃~ 1500 ℃
4) Refractory material for tunnel kiln need use magnesium-aluminum bricks at 1500 ℃~ 1600 ℃
5) Tunnel kiln refractory use corundum brick below 1800 ℃
At the same time, in order to reduce the heat dissipation of the kiln wall, light clay bricks and light silica bricks are built in the middle and outer walls of the kiln wall.
Refractory Material for Tunnel Kiln Temperature Classification
Low temperature tunnel kiln for refractory material - firing temperature is about 1000 ℃, mainly used for roasting skateboard bricks and other refractory products with special process requirements.
Medium temperature refractory tunnel kiln: firing temperature is 1300℃ ~ 1650 ℃, mainly used for firing ordinary alkaline bricks, clay bricks, high alumina bricks, skateboard bricks, nozzle bricks, silicon bricks and other refractory products.
High temperature tunnel kiln for refractory material: Firing temperature is greater than 1700 ℃, generally between 1800 ℃and 1900℃.Tunnel kiln refractory is mainly used for firing medium-grade magnesia bricks, high-purity magnesia bricks, direct combination of magnesia-chrome bricks, magnesia alumina refractory bricks and corundum refractory brick.
Refractory Material for Tunnel Kiln Manufacturer in RS Refractory Factory
Rongsheng refractory factory is a fire resistant and thermal insulation material production enterprise. It is a comprehensive enterprise integrating scientific research, testing, development, production, sales and customers. Rongsheng refractory group have one production line for stereotyped and amorphous fire-resistant and wear-resistant products. One production line is enough to meet the processing capacity of 80,000 tons of high-quality refractory products per year, it has a construction team with professional anti-corrosion and thermal insulation engineering level and kiln masonry second-class qualification. The scope of construction includes the completion of turnkey projects from contract signing, material supply, metal spraying, corrosion-resistant spraying, material masonry insulation, oven, and operation. It has comprehensive testing methods and can guide us to each product. Indicators and each subtle production link.
